Update app.py

app.py

@@ -187,13 +187,13 @@ if prompt := st.chat_input("How can I help you today?"):
         sound.export("/home/user/app/audio/audio.wav", format="wav")
     
     if "reference" not in st.session_state:
-        st.session_state.reference = False
+        st.session_state.reference = '/home/user/app/pdf2image/default_output.png'
     if "audio" not in st.session_state:
-        st.session_state.audio = False
+        st.session_state.audio = "/home/user/app/audio/beep-06.mp3"
 
 
     with st.sidebar:
-        choice = st.radio("References and TTS",["Reference" , 'TTS'], index=None)
+        choice = st.radio("References and TTS",["Reference" , 'TTS'], index=None,)
 
         if choice == 'Reference':
             generate_pdf()